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Air & Vacuum Valve


The GA Industries Air & Vacuum Valve utilizes the Kinetic operating principle and is designed to prevent the valve from blowing shut before all the air is vented. The valve is held open by the exiting air stream, but is immediately closed when solid water rises into the valve and lifts the float ball, sealing the orifice. For additional configurations, see Product versions below.

American Iron and Steel compliant version available. 

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General information

Product features and benefits

  • Rugged and corrosion resistant
  • Full sized outlet for maximum capacity
  • Drop tight seating
  • Full length guides ensure proper seating
  • Spherical, stainless steel float
  • Rubber cushions protect float from damage
  • Ensures complete purging of all air prior to valve closure


  • Body, Cover: Cast Iron, ASTM A126 Class B
  • Seat: Buna-N
  • Float Ball: 316 Stainless Steel
  • Float Guide:UHMWPE
  • Cushion: Buna-N
  • Bolts: Steel

Product versions

Deep Well

Product features and benefits
  • Features the standard valve with a throttle device
  • Installed between the discharge of a deep well vertical turbine or submersible pump and its check valve
  • Used to purge the air in the column at start up and admit air to break the vacuum
  • Admits air allowing the column to fall at shutdown
  • 1/2"-3” NPT and 3”-6” flanged

Slow Closing

Product features and benefits
  • Features the standard valve mounted on a surge check valve
  • Minimizes slam, system shock, and valve damage
  • For pipelines where fluid velocity can exceed 10ft/sec, where column separation can occur, or at the discharge of large vertical turbine pumps
  • 1”-3” NPT and 3”-12” flanged


Product features and benefits
  • 1/2”-3” NPT and 2”-16” flanged
  • Pressures up to 400 PSI
  • Temperatures to 150° F
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9025 Marshall Road
Cranberry Township, PA 16066
United States
+1 724-776-1020 +1 724-776-1254 Write e-mail